baber/WOPTO huggingface dataset:
Patent GB-1309202-A (GB)
Title: Control cabinet in particular for medium-voltage systems
IPC: H02B1/36
Filed: 1971-05-21
Abstract: 1309202 Mechanical switches; switchboards SPRECHER & SCHUH AG 21 May 1971 [9 Feb 1971] 16295/71 Heading H1N In a control cabinet 1, Fig. 2, adapted to receive numbers of push-in modules 2 (only one shown) having plug-in contact-units 7, 9 for the control circuit and main circuit respectively, the modules 2 can be located either fully engaged or partially withdrawn for testing, with the main circuit plug 9 withdrawn (as shown) or made fully withdrawable as determined by the position of locking cams 40, 41, 42, 43, engageable with a flange 44 on the cabinet 1. For disconnection of the main circuit, the plugin unit 9 is rigidly fixed to the module 2 whereby it is withdrawn from the main circuit socket unit (8), Fig. 4 (not shown), when the module 2 is withdrawn to its first partially withdrawn position (shown, Fig. 2), determined by cam arm 42<SP>11</SP> engaging flange 44 after rotation of locking head 39 on shaft 38 carrying the cams. A further quarter turn of the head 39 results in the module 2 being held in position with limited movement due to the flange 44 lying between cams 42, 43, the cam 41 however being rotated to a position at which it depresses a microswitch (not shown) to close the control circuit. For entire removal of the module 2, the head 39 is rotated by a further quarter turn to release all the cams clear of the flange 44. The plug-in contact unit 7 for the testing circuit is mounted on a pair of slidable guide pins 13, Fig. 7, whereby on partial withdrawal of the module 1 and supports 14, 15 for the guide pins 13 the contact unit remains plugged in to the unit 6 in the position of Fig. 6 (not shown). On complete withdrawal of the module 1 the pins 13 are automatically locked in the withdrawn position by spring loaded catch bolts 25, 26 engaging recesses 18 on the pins 13 while guide and latch pin socket guides 16, 17 for the plug and socket units 6, 7 are separated. On reinsertion of the module or a replacement module the plug-in unit 7 is thereby held locked by bolts 25, 26 until the units 6, 7 are fully engaged to the circuit testing position only. For re-engagement of the main circuit plug to socket units 8, 9 the bolts 25, 26 are released by depression of an unlocking plunger rod 20 having a depressible head extending through the front plate 21 of the module and having a wedge cam edge 23 engageable with a tag 24 to withdraw the catch bolt 25. A spring loaded linkage 31, 32 &c. on pivots 33, 34 of a further module plate 36 causes corresponding withdrawal of the catch bolt 26 from the recess 18 of lower bolt 13 whereby the module can be fully inserted.
Patent GB-1080165-A (GB)
Title: Improvements relating to the continuous treatment of strip or sheet material
Inventor: HARRIS JOSEPH CREASEY
IPC: C21D9/63
Filed: 1963-04-25
Abstract: To minimize leakage from a treatment chamber through which strip or sheet material, e.g. strip metal 3, is continuously passed and which is supplied with a gaseous medium at a pressure above atmospheric, the material inlet and outlet openings in the chamber are provided with sealing <PICT:1080165/C6-C7/1> <PICT:1080165/C6-C7/2> enclosures 13 and 14 supplied with gaseous fluid at a pressure at least equal to that of the gaseous medium.  The strip metal 3 passes first through a heating chamber 1 and then through a cooling chamber 2.  Each chamber is divided into upper and lower chambers 6, 7 between which the strip passes and gaseous medium supplied to the chambers by fans 9, 10 and 19 flows through apertures in the walls adjacent the strip (as indicated by the arrows, Fig.3) to floatingly support the strip.  The enclosures 13 and 14 are divided into upper and lower compartments supplied by fans 15 with gaseous fluid whose pressure is controlled by dampers 17 and which passes through apertures in the walls of the compartments adjacent to the strip to oppose leakage of gaseous medium from the chambers 1 and 2. The medium supplied to the chamber 1 may be heated by a heater 18 and that supplied to the chamber 2 may be recirculated as at 20.  The gaseous medium may be of a non-oxidizing nature and the gaseous fluid may be air or may be the same as the gaseous medium.
Patent GB-594177-A (GB)
Title: Rotary electric selector switch
IPC: H01H19/64
Filed: 1945-06-27
Abstract: 594,177. Mechanical switches without quick action. ARROW ELECTRIC SWITCHES, Ltd. June 27, 1945, No. 16371. Convention date, July 7, 1944. [Class 38(v)] In a rotary selector switch, sets of contacts 22 having terminal bars 20, are mounted in recesses in stacked insulating body discs B, C, D, each set being engageable by a blade-contact 24 carried in a recess on the upper face of an insulating rotor disc 34, and electrically connected by a rivet to a resilient bowed annular contact 50 on the under face of the disc 34. The discs 34 are slidably carried on a square-section spindle 30, and each engages the underside (Fig. 2) of the adjacent bodydisc so as to urge the contact 50 on to a fixed collector-ring 60, which has a terminal bar 62 seated in a recess similar to those of the fixed contacts 22. Radial displacement of the contacts 22 is prevented by lugs 26 which co-operate with wells 28 in the recesses in discs B, C, D.
Patent GB-502549-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B19/06
Filed: 1937-06-12
Abstract: 502,549. Oil engines; starting. KAMMER, G. S. June 12, 1937, No. 16383. Void. Convention date, June 12, 1936. [Classes 7 (iii) and 7 (v)] Air, compressed to the ignition temperature of the fuel by the working piston 2, is drawn during the injection of fuel, by a piston 3, through a passage 5 into a chamber 4 where combustion is effected. Towards the end of the expansion stroke the piston 3 forces the burnt gases in the chamber 4 through an exhaust port 7 in the cylinder 1. The air admission ports 10 are controlled by a valve 9 carried on the piston rod 8. A fuel injector 6 may spray fuel in the same or the opposite direction to the air current entering the chamber 4 or the fuel may be deposited in a recess in the passage 5. At starting the movement of the piston 3 is delayed to enable the engine to operate with a higher compression.
Patent GB-781448-A (GB)
Title: Process for the production of magnetogram carrier tapes
IPC: C09D5/23
Filed: 1954-06-29
Abstract: 781,448. Magnetic dust structures. BADISCHE ANILIN & SODA-FABRIK AKT.-GES. June 29, 1954 [June 30, 1953], No. 16388/56. Divided out of 781,447. Class 38(2). Magnetic recording tape is made by applying to a carrier foil a layer of powdered magnetic material in an organic binder which contains substantially no softening agent or inactive pigment, and stretching the finished foil slightly without applying heat, before or after the foil is cut into tape. By this method, alternative to that forming the subject of Specification 781,447, the tendency of the tape to curl so as to become concave towards the side of the active layer is reduced.
Patent GB-763381-A (GB)
Title: Improvements in aircraft
Inventor: WESTBURY ROY
IPC: B64C13/46
Filed: 1954-06-03
Abstract: 763,381. Aircraft control. HOBSON, Ltd., H. M. May 2, 1955 [June 3, 1954; Dec. 3, 1954], Nos. 16486/54 and 35063/54. Class 4. An aircraft powered flying control system includes an adjustable member in the linkage connecting the control member to the input of the servo mechanism, a hydraulic jack including a piston and housing one of which is movable against a spring in response to variations in pressure in the housing caused by means controlled by an airspeed responsive device so that the pressure increases with airspeed, and means actuated by the movable member of the jack for adjusting the adjustable linkage member, so that the movement of the servo input for a given movement of the control member will decrease as the airspeed increases and vice versa. In Fig. 3, the control column 20 is connected by a link 28 to a lever 60 through a pin and slot coupling 29, 30. The free end of lever 60 is pivoted to a link 25 operating a surface by a hydraulic servo-mechanism. Also connected to the end of the column 20 is the rod 55 of a piston 34 in a cylinder 36, the lower end of which is attached to a strong spring 37 and pivoted to one end of a centrally pivoted lever 39. A link 40 extends between link 28 and the other end of lever 38. The pressure in the upper part of cylinder 36 is varied in accordance with airspeed, e.g. by valves as disclosed in Specifications 734,437 and 740,510. When airspeed increases, the pressure above piston 34 increases and the cylinder rises. Link 40 is lowered, lowering pin 29 in slot 30 to decrease the velocity ratio of the transmission. At the same time, spring 37 is extended and exerts a greater centering force on the control column 20. In Fig. 1 (not shown), the rod 55 is pivoted to fixed aircraft structure, and the control column is provided with centering springs. Fig. 4 shows a modification of the valve mechanism of the above, mentioned Specification. Two diaphragms 42, 71 are subject to total pressure between them and to static pressure on their other sides. Diaphragm 42 controls the pressure reducing valve 46 until the two diaphragms have separated enough for lost motion between a member 73 and a claw 74 to be taken up. At the corresponding airspeed, therefore, the control effect of diaphragm 42 is altered, and depending on the relative areas of the diaphragms, the pressure above piston 34, Fig. 3, can be slowly raised, held constant, or slowly lowered, as airspeed increases. A further diaphragm 68 connected to the casing through an evacuated capsule 75, is also subjected to the difference between static and total pressure, and actuates through lever 76, a lever 78 which at a predetermined Mach. number adds a further force to diaphragm 42, and the pressure in cylinder 34 once more rises with airspeed. If capsule 75 is omitted, the pressure in cylinder 34 begins to use again at a predetermined airspeed. The slot in lever 60 may be inclined to the longitudinal axis of the lever.
Patent GB-223632-A (GB)
Title: Improvements in or relating to hydraulic rotary pumps
IPC: F04B1/107
Filed: 1923-06-26
Abstract: 223,632. Johnston, N. F. June 26, 1923. Eccentric-actuated pumps; stroke, varying; revolving-cylinder pumps.- The rotor A is mounted in a stationary casing B and has radial cylinders C<1>, C2 &c. in which pistons are reciprocated by an eccentric track F. The pistons carry pins E<1>, E<2> &c. engaging slots F<1>, F<2> &c. in flanges formed on the track F. In the form shown in Fig. 3 the rotor rotates on a central valve provided with inlet and outlet passages L<1>, L<2> and the eccentric track F surrounds the rotor. The track F in both forms may be adjusted across the axis of rotation to vary the stroke of the pistons. The ends of the pistons engaging the track F and the contacting portions of the track may be serrated.
Patent GB-1472015-A (GB)
Title: Fuel injectors
IPC: F23D11/42
Filed: 1975-04-22
Abstract: 1472015 Fuel injectors; lighters SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 22 April 1975 [30 April 1974] 16544/75 Heading F4F and F4T  A fuel injector, e.g. for a jet propulsion engine comprises a tubular duct 4, having an internal rotating air flow 2, an external rotating air flow 3 and an intermediate annular fuel flow 1, a central electrode 20 being provided which is connected to an electrical source so that a spark is produced between the end of the electrode and the wall 10 of the duct across the internal air flow and the fluid flow. The air supplies 2, 3, are rotated by swirlers 6, 8, and exert a shearing effect on the fuel which passes from a conduit 18, through a cavity 13 and channels 14, an annular chamber 11, channels 12, to an annular duct 7. Electrode 20 is insulated by a ceramic sleeve 19 and a synthetic resin block 28, and is connected to a high tension electricity supply 35. Several injectors all fired by separate electrodes controlled by a distributer may be provided in a combustion chamber. In a modification, fuel is supplied through a duct 49, Fig. 2, at an idling rate and at a higher rate through ducts 49 and 50. The internal and external air supplies 2a, 3a, and a third air supply 47, are provided.
Patent GB-1178156-A (GB)
Title: Shaft Coupling Device
Inventor: PRUNER HAROLD WENDELL
IPC: F16D3/50
Filed: 1967-04-11
Abstract: 1,178,156. Universal joints. BARNES MFG. CO. 11 April, 1967 [14 April, l966], No. 16613/67. Heading F2U. In a universal joint of the kind wherein a non-metallic non-bonding resilient element 14 is interposed between interpenetrating lugs 26 on driving and driven hubs 12, 10 respectively fast with shafts 16, 18, the screw-threaded connection between each hub and its shaft permits fluid to flow therebetween to the centre of the joint to lubricate and cool the latter. The hubs may be made of an aluminiumbronze alloy and the resilient element may be a non-porous polyurethane elastomer. As shown the coupling is between a driving motor and the impeller of a pump and the water being pumped is used as the cooling and lubricating fluid.
Patent GB-518815-A (GB)
Title: Improvements in throat microphones and methods of adjusting the same
IPC: H04R1/14
Filed: 1938-06-03
Abstract: 518,815. Throat microphones. BALLANTINE, S. June 3, 1938, No. 16697. [Class 40 (iv)] In a throat microphone, preferably electromagnetic, the vibrating member and the means conveying the throat vibrations thereto have a principal resonance frequency above 1,000 cycles. To prevent the sensitivity being varied by reduction of the air gap by the pressure between the microphone and throat, the magnetic circuit is in a state of saturation or incipient saturation, so that the output remains substantially constant. Two microphones are carried by a band worn round the neck. The wall 1, Fig. 3, enclosing the two microphones is of leather, rubber, synthetic resin &c., and may be covered with thin rubber or leather 4 passing over buttons 5 which convey the throat vibrations to a strip diaphragm 7 mounted above an E-shaped magnetic system polarized by bar magnets 9, 9<SP>1</SP> which present like poles to the diaphragm. Metallic pieces 8, 8<SP>1</SP> define the effective length of the diaphragm and thus its resonant frequency, which is above 1,000 and preferably between 2,500 and 4,000. The diaphragm may be damped by a drop of oil in the air gap between the centre pole 101 and the diaphragm, the gap being adjusted by a screw 13. The conductors 14 pass through shielding springs 15 and a T-shaped metallic piece 19. Saturation of the magnetic circuit for the purpose stated above may be effected by (1) predetermining the flux density, as by a notch 30, Fig. 9, associated with an adjustable magnetic shunt 32, (2) by using permanent magnets of high coercive force, (3) by decreasing the thickness of the diaphragm, and (4) by using materials of high permeability in some part of the magnetic circuit. The operating point of the magnetic circuit is preferably above the point of inflection of the B and H curve, e.g., at the upper level of the curve, Fig. 11 (not shown). Noise due to air entering the space between the neck and the microphone is reduced by shaping the upper and lower edges of the casing to obtain a good contact with the neck, Figs. 15, 16 (not shown). Specifications 518,814 and 518,816 are referred to.
Patent GB-916495-A (GB)
Title: Improvements in or relating to the manufacture of show-cards or the like which are primarily for use out-of-doors
IPC: D21J1/00
Filed: 1958-05-23
Abstract: An aqueous, water-resistant adhesive for use in the manufacture of show cards and signs (see Group VIII) comprises polyvinyl acetate or 6-polychloroprene or styrene-butadiene copolymer or butadiene-acrylonitrile copolymer, dioctyl phthalate and polyvinyl alcohol.  Alternatively, a non-aqueous, water-resistant adhesive comprising nitrocellulose, camphor, acetone, methylated spirit and amyl acetate or an adhesive comprising polyvinyl acetate, di-butyl phthalate, methylated spirit and ethyl acetate may be used.  A lacquer for coating the show cards &c. may be a spirit varnish comprising pentaerythritol rosin ester, tri-tolyl phosphate, methylated spirit and ethylene glycol mono-ethyl ether. The lacquer may be a varnish comprising cellulose acetate butyrate, chlorinated diphenyl, methylated spirit and toluene. Alternatively, the lacquer may be a varnish comprising butylated urea-formaldehyde resin, castor-oil-modified alkyd resin, xylene, n-butanol and phosphoric acid.  The lacquer may also comprise zinc oxide or titanium dioxide.
Patent GB-216715-A (GB)
Title: Miniature lawn tennis court or model for instruction or demonstration purposes
IPC: A63B61/02
Filed: 1923-06-28
Abstract: 216,715. Walker, I. Plomer-, and Jaques & Son, Ltd., J. June 28, 1923. Lawn tennis, badminton, &c. teaching appliances.-A device or model for the instruction of lawn tennis, badminton, or like games comprises a pair of flat surfaces A, B hinged together and marked to depict in miniature a lawn tennis &c. court, a transverse member D to represent the net and posts for erection at the hinged junction of the flat surfaces when the latter are opened out. The material of the surfaces A, B is suitable for chalking on during instruction. The net is provided at each end with a stiffening piece connected to the surfaces A, B by flexible stays E, F, or by rods flexibly secured at the ends, so that when the board is folded as shown in Fig. 2, the net may lie between the folds at some distance from the hinge. If the stays are flexible, the bottom edge of the net may be attached to the hinge. As the board is opened out the net is automatically erected. If desired, the net may be separate from the hinged board and may be erected after the board has been opened out. The net may consist of netting, textile material, or cardboard, and the flat surfaces A, B may be made of metal, wood, cardboard, or the like.
Patent GB-302867-A (GB)
Title: Improvements in or relating to illuminable sign display apparatus
IPC: G09F1/04
Filed: 1928-06-11
Abstract: 302,867. Smith, G., and Smith, C. June 11, 1928. Signs.-A sign of the type in which a collapsable hollow chamber is arranged behind the sign proper to accommodate lighting-means, comprises a front sign-bearing member, a plurality of walls each hinged at one edge to the front member, and a back member hinged to one of the walls together with means for holding the walls and back member in fixed or rigid relationship to form a closed chamber. Fig. 1 shows one construction in which four sides 7 are hinged to the stencil-carrying front 1 and are connected to one another by the hooks 12. The rear leg 11, which may be adjust. able, is hinged intermediate its ends to the bottom side. In folding, the two vertical walls fold inwards over one another, and the top and bottom' walls then fold over them. The hinges of the top and bottom walls are mounted on battens 15 to the rear of the front frame 1 to facilitate this process. A base board 17<a> may be provided to fold over as shown at 17 and protect the stencil face during transit. In some cases a skeleton framework covered with flexible opaque material may be used to form the collapsable box.
Patent GB-1179637-A (GB)
Title: Improvements in or relating to Flexible Couplings
Inventor: MAS GEORGES
IPC: F16D3/58
Filed: 1967-04-12
Abstract: 1,179,637. Universal joints. SOC. INDUSTRIELLE DE TRANSMISSIONS. 12 April, 1967, No. 16881/67. Heading F2U. A universal joint comprises reinforced flexible pins 5 engaged in circumferentially arranged flared holes 6 in coupling flanges 1, 2 secured to shaft ends 4, 3. The mouth of the holes may be flared circular, as shown, or elongated, straight or curved, Figs. 6 and 7 (not shown). The pins 5 and corresponding holes 6 may, as stated, be of circular section, or, trapezoidal, Figs. 8 and 9 (not shown), and the pins 5 axially retained each end by a circlip (11), Fig. 10 (not shown), or washer and circlip (12, 13), Fig. 12 (not shown), fitted in grooves in the flanges 1, 2 and which may be removed for simple replacement of worn pins 5. The pins 5 may be of rubber or like material reinforced by natural or synthetic textile elements, such as polyamides or polyesters, independently distributed parallel to or at a small angle to and/or some inter-crossing with the pin axis, and rolled from calendered cloth, formed by unwoven parallel elements interleaved between two thin layers of rubber, wound parallel or obliquely to the axis of the finished pin which is finally vulcanized. To resist high temperatures, metal wires or glass filaments, which may be in cabled form, may be used for the reinforcement.
Patent GB-1098669-A (GB)
Title: Emulsion of polyethylene and process of preparation
IPC: C08F10/00
Filed: 1966-04-19
Abstract: Ethylene is polymerized at elevated pressure in an aqueous medium comprising a water-soluble persulphate and an alkylaryl sulphonate containing at least one C8- 18 alkyl group attached to the aromatic ring by a secondary or tertiary carbon atom.  Preferred persulphates are alkali metal persulphates, and the medium may also contain an alkali metal hydroxide and tertiary butyl alcohol.  Specified emulsifiers are sodium 1,1 - dimethyldecylbenzene, 1,1 - dimethyldecyl diphenyl, 1-methylundecylbenzene, 1,1,3,3,5,5 - hexamethylhexylbenzene, 1,1-dimethyl hexylbenzene, 1-methylheptylbenzene, 1,1,3,3 - tetramethylbutylbenzene, 1,3,5,7-tetramethyloctylbenzene 1,3,5,7,9,11 - hexamethyldodecylbenzene and 1,1,3,3,5,5,7,7 - octamethyloctylbenzene sulphonates.  The resulting emulsions may be concentrated and used in floor polish compositions.  In examples ethylene is polymerized in the presence of potassium persulphate, potassium hydroxide and sodium 1-methylundecylbenzene sulphonate.
Patent GB-587720-A (GB)
Title: Improvements in and relating to the reproduction of surfaces by electro-deposition
IPC: C25D1/00
Filed: 1944-09-06
Abstract: 587,720. Making metal articles by electrodeposition. LENNON, J. J., and MINING & CHEMICAL PRODUCTS, Ltd. Sept. 6, 1944, No. 17057. [Class 41] [Also in Group XXII] A process for the reproduction of bodies having intricate surfaces form a master model comprises the following steps. The master model a, e.g., a three-dimensional cam is mounted on a bolt g in a jig b having a cavity similar in shape to the model but of somewhat greater radial dimensions. The model is secured by a top member d, which may be in the form of a cruciform frame, carrying dowel pins h, e fitting holes in the model and the jig respectively for accurate registration. A bismuth alloy or other suitable medium is then introduced into the space c between the jig and model by gravity casting. Solidification may be accelerated by air or water cooling, e.g., a copper water cooling coil may be inserted into the cavity so as not to touch the model. Injection moulding may alternatively be employed, the cruciform frame then being replaced or supplemented by a plate having a suitable passage. The member d and model a are then removed by releasing nut j and an anode of suitable form is introduced into the cavity. The anode is supported from an insulating bar which is screwed to the top of the jig and carries the anode and cathode leads. Surfaces of the jig other than the moulded surface are treated with a protective lacquer. The jig is then immersed in a bath for the electrodeposition of a metal, ferrous or non-ferrous, on the inside of the moulded shell. If a non- metallic moulding medium has been employed its surface is first rendered conductive, e.g., by a silvering solution or by deposition of graphite from a suspension in acetone. After removal from the bath and dismantling of the electrolytic assembly, a core of cast iron, steel or other metallic or non-metallic material is mounted on the member d in similar manner to the original model and introduced into the jig in correct registration and the space between the core and the electro-deposit filled with a suitable bonding medium, e.g., a calcium sulphate cement or a bismuth alloy. The surrounding mould is then removed by melting or chemical treatment.